/// <summary>
/// sets the QAM modulation for ATSC cards under XP
/// </summary>
public void SetXPATSCQam(ATSCChannel channel)
{
if (_isGenericATSC == false)
{
return;
}
KSPropertySupport supported;
_propertySet.QuerySupported(guidBdaDigitalDemodulator, (int)BdaDigitalModulator.MODULATION_TYPE, out supported);
if ((supported & KSPropertySupport.Set) == KSPropertySupport.Set)
{
Log.Log.Info("GenericATSC: Set ModulationType: {0}", channel.ModulationType);
Marshal.WriteInt32(_tempValue, (Int32)channel.ModulationType);
int hr = _propertySet.Set(guidBdaDigitalDemodulator, (int)BdaDigitalModulator.MODULATION_TYPE, _tempInstance, 32,
_tempValue, 4);
if (hr != 0)
{
Log.Log.Info("GenericATSC: Set returned: 0x{0:X} - {1}", hr, HResult.GetDXErrorString(hr));
}
}
//Below is for debug only...
/*
* if ((supported & KSPropertySupport.Get) == KSPropertySupport.Get)
* {
* Log.Log.Info("GenericATSC: Get ModulationType");
* Marshal.WriteInt32(_tempValue, (Int32)0);
* hr = _propertySet.Get(guidBdaDigitalDemodulator, (int)BdaDigitalModulator.MODULATION_TYPE, _tempInstance, 32, _tempValue, 4, out length);
* Log.Log.Info("GenericATSC: Get returned:{0:X} len:{1} value:{2}", hr, length, Marshal.ReadInt32(_tempValue));
* }
*/
}
/// <summary>
/// Sends the diseq command.
/// </summary>
/// <param name="channel">The channel.</param>
/// <param name="parameters">The channels scanning parameters.</param>
public void SendDiseqCommand(ScanParameters parameters, DVBSChannel channel)
{
if (_isGenPix == false)
{
return;
}
Log.Log.Debug("SendDiseqc: {0},{1}", parameters.ToString(), channel.ToString());
//bit 0 (1) : 0=low band, 1 = hi band
//bit 1 (2) : 0=vertical, 1 = horizontal
//bit 3 (4) : 0=satellite position A, 1=satellite position B
//bit 4 (8) : 0=switch option A, 1=switch option B
// LNB option position
// 1 A A
// 2 A B
// 3 B A
// 4 B B
int antennaNr = BandTypeConverter.GetAntennaNr(channel);
bool hiBand = BandTypeConverter.IsHiBand(channel, parameters);
bool isHorizontal = ((channel.Polarisation == Polarisation.LinearH) ||
(channel.Polarisation == Polarisation.CircularL));
byte cmd = 0xf0;
cmd |= (byte)(hiBand ? 1 : 0);
cmd |= (byte)((isHorizontal) ? 2 : 0);
cmd |= (byte)((antennaNr - 1) << 2);
DISEQC_COMMAND DiseqcCommand = new DISEQC_COMMAND();
DiseqcCommand.ucMessage[0] = 0xE0; //framing byte
DiseqcCommand.ucMessage[1] = 0x10; //address byte
DiseqcCommand.ucMessage[2] = 0x38; //command byte
DiseqcCommand.ucMessage[3] = cmd; //data byte (port group 0)
DiseqcCommand.ucMessage[4] = 0; //Need not fill this up
DiseqcCommand.ucMessage[5] = 0; //Need not fill this up
DiseqcCommand.ucMessageLength = 4; //Number of Valid bytes in the Command.
Marshal.StructureToPtr(DiseqcCommand, _ptrDiseqc, false);
//get the length of the structure command - usually 7 bytes.
int len = Marshal.SizeOf(DiseqcCommand);
string txt = "";
for (int i = 0; i < len; ++i)
{
txt += String.Format("0x{0:X} ", Marshal.ReadByte(_ptrDiseqc, i));
}
Log.Log.Debug("GenPix: SendDiseqCommand: {0} with length {1}", txt, len);
//set the DisEqC command to the tuner pin
int hr = _propertySet.Set(BdaTunerExtentionProperties, (int)BdaTunerExtension.KSPROPERTY_BDA_DISEQC,
_ptrTempInstance, 32, _ptrDiseqc, len);
if (hr != 0)
{
Log.Log.Info("GenPix: SendDiseqCommand returned: 0x{0:X} - {1}{2}", hr, HResult.GetDXErrorString(hr),
DsError.GetErrorText(hr));
}
}
